I used Poser 6 through Poser 2014 and then when the upgrade path was confusing (I had JUST upgraded to 2014, will I get a break on P11? was unclear, or I missed the window or something) I made the very hard slog to DAZ Studio, but now love DAZ after conquering the learning curve.  Recently Afrodite-Ohki's Anuli figure made me FINALLY cave in (not exaggerating - that ONE character made it seem worthwhile to me!) and buy P11 (on sale for $50!) only to find out Poser 13 was six weeks away. <sigh>  I prefer Superfly and am rocking an Nvidia RTX3090 so feel pretty under-utilized with P11.  I'll be upgrading to P13 (if the P11-P13 upgrade seems worth the cost) and consider Poser to be ONE of the tools in my graphics toolbox, not the ONLY tool.  I'm excited about the improvements.

I think the comment about Poser 13 being a Renderosity "complete code re-write" is far, far understated.  That's a HUGE deal!